diff options
| author | eivind <eivind@FreeBSD.org> | 1999-01-20 14:49:12 +0000 |
|---|---|---|
| committer | eivind <eivind@FreeBSD.org> | 1999-01-20 14:49:12 +0000 |
| commit | 836035a4edf2d12174893117e0db29e309203a8b (patch) | |
| tree | b49b8271eedf41e5c0a341956ab5c43489f98b71 /sys/kern/vfs_vnops.c | |
| parent | af1ac09a53e9b9f7d330522b7109c3ae65dbba61 (diff) | |
| download | FreeBSD-src-836035a4edf2d12174893117e0db29e309203a8b.zip FreeBSD-src-836035a4edf2d12174893117e0db29e309203a8b.tar.gz | |
Add 'options DEBUG_LOCKS', which stores extra information in struct
lock, and add some macros and function parameters to make sure that
the information get to the point where it can be put in the lock
structure.
While I'm here, add DEBUG_VFS_LOCKS to LINT.
Diffstat (limited to 'sys/kern/vfs_vnops.c')
| -rw-r--r-- | sys/kern/vfs_vnops.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c index 756c945..0b32a7d 100644 --- a/sys/kern/vfs_vnops.c +++ b/sys/kern/vfs_vnops.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)vfs_vnops.c 8.2 (Berkeley) 1/21/94 - * $Id: vfs_vnops.c,v 1.60 1998/11/02 02:36:16 peter Exp $ + * $Id: vfs_vnops.c,v 1.61 1999/01/05 18:49:56 eivind Exp $ */ #include <sys/param.h> @@ -510,10 +510,18 @@ vn_poll(fp, events, cred, p) * acquire requested lock. */ int +#ifndef DEBUG_LOCKS vn_lock(vp, flags, p) +#else +debug_vn_lock(vp, flags, p, filename, line) +#endif struct vnode *vp; int flags; struct proc *p; +#ifdef DEBUG_LOCKS + const char *filename; + int line; +#endif { int error; @@ -526,7 +534,12 @@ vn_lock(vp, flags, p) tsleep((caddr_t)vp, PINOD, "vn_lock", 0); error = ENOENT; } else { - error = VOP_LOCK(vp, flags | LK_NOPAUSE | LK_INTERLOCK, p); +#ifdef DEBUG_LOCKS + vp->filename = filename; + vp->line = line; +#endif + error = VOP_LOCK(vp, + flags | LK_NOPAUSE | LK_INTERLOCK, p); if (error == 0) return (error); } |
